firebase - 未为类定义方法 'allowInterop'…尝试使用Firestore时Dart控制台应用程序错误

Question

我正在尝试编写一个使用Firestore数据库作为持久层的控制台Dart App，但是当我尝试运行基本示例时，firebase会抛出这种内部库错误:

file:///home/alexandre/.pub-cache/hosted/pub.dartlang.org/firebase-5.0.2/lib/src/auth.dart:274:25: Error: The method 'allowInterop' isn't defined for the class '#lib1::Auth'.
Try correcting the name to the name of an existing method, or defining a method named 'allowInterop'.
      var nextWrapper = allowInterop((firebase_interop.UserJsImpl user) {

我的pubspec.yaml是:

name: flix_backend_dart
description: A sample command-line application.
# version: 1.0.0
# homepage: https://www.example.com
# author: alexandre <email@example.com>

environment:
  sdk: '>=2.1.0 <3.0.0'

#dependencies:
#  path: ^1.4.1

dev_dependencies:
  test: ^1.0.0
  firebase: ^5.0.0

App的代码段为:

import 'package:firebase/firebase.dart';
import 'package:flix_backend_dart/domain/repository.dart';
import 'package:flix_backend_dart/network/load_movies.dart';
import 'package:flix_backend_dart/network/service.dart';




main(List<String> arguments) {
  const _query = 'get:new21';
  const _startYear = 1900;
  const _endYear = 2019;
  const _startNetflixRate = 0.0;
  const _endNetflixRate = 5.0;
  const _startImdbRate = 0.0;
  const _endImdbRate = 10.0;
  const _genreId = 0;
  const _vtype = 'movie';
  const _audio = 'Any';
  const _subtitle = 'Any';
  const _imdbVotes = 100;
  const _downloadable = '';

  final queryParameters = {
    'q':
    '${_query}-!${_startYear},${_endYear}-!${_startNetflixRate},${_endNetflixRate}-!${_startImdbRate},${_endImdbRate}-!${_genreId}-!${_vtype}-!${_audio}-!${_subtitle}-!${_imdbVotes}-!${_downloadable}',
    't': 'ns',
    'cl': '29',
    'st': 'adv',
    'ob': "Relevance",
    'sa': 'and',
    'p': '1'
  };


  var app = initializeApp(
      apiKey: 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
      authDomain: 'xxxxxxxxxxxxxxxxirebaseapp.com',
      databaseURL: 'xxxxxxxxxxxxxxxxxxxxxx.firebaseio.com',
      projectId: 'xxxxxxxxxx7012',
      storageBucket: 'storageBucket',
      messagingSenderId: 'xxxxxxxxxx18'
  );


  var ref = firestore(app).collection("movies");

  ref.get().then((snapshot){
    snapshot.forEach((doc){
      var imdbid = doc.data()['imdbid'];
      print("imdbid: $imdbid");
    });
  });


  var r =
  GetNewMoviesImpl.instance(FetchMovieServiceImpl(), FirebaseRepository());



  r.execute(queryParameters).then((r) {
    print(r);
  });
}

我可以从控制台Kotlin应用程序访问此数据库。我做错什么了吗？

Answer 1

浏览器外部没有allowInterop。此功能尤其适用于Dart-js-interop调用。您正在使用的firebase库可能也只能在浏览器中使用。服务器/控制台上仅支持Firebase管理员API。

https://github.com/fluttercommunity/firebase_flutter_sdk是纯Dart方法，应该在服务器上也可以使用，但我不知道其状态。